Find Distance

Time Limit: 1 sec

 

The Problem

A city bus is travelling to New market from Agrabad. The time it takes to reach New market while running at D1 KM/Hour. If the bus is run at D2 KM/H then its need less T Hour to reach New market. You task is to find the distance of New Market to Agrabad.      

Here D2>D1.

 

 

The Input

The input file contains three integer number D1, D2, T (D1, D2<=100, T<50 and D2>D1)

 

The Output

Output will show the distance of New Market to Agrabad in a separate line.

 

Sample Input

5 10 2

 

Sample Output

20

 

 

 

 

 

Problem Setter: Nezam Uddin